﻿/**
 * Flash (http://jquery.lukelutman.com/plugins/flash)
 * A jQuery plugin for embedding Flash movies.
 * 
 * Version 1.0
 * November 9th, 2006
 *
 * Copyright (c) 2006 Luke Lutman (http://www.lukelutman.com)
 * Dual licensed under the MIT and GPL licenses.
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.opensource.org/licenses/gpl-license.php
 * 
 * Inspired by:
 * SWFObject (http://blog.deconcept.com/swfobject/)
 * UFO (http://www.bobbyvandersluis.com/ufo/)
 * sIFR (http://www.mikeindustries.com/sifr/)
 * 
 * IMPORTANT: 
 * The packed version of jQuery breaks ActiveX control
 * activation in Internet Explorer. Use JSMin to minifiy
 * jQuery (see: http://jquery.lukelutman.com/plugins/flash#activex).
 *
 **/
; (function () {

    var $$;

    /**
     * 
     * @desc Replace matching elements with a flash movie.
     * @author Luke Lutman
     * @version 1.0.1
     *
     * @name flash
     * @param Hash htmlOptions Options for the embed/object tag.
     * @param Hash pluginOptions Options for detecting/updating the Flash plugin (optional).
     * @param Function replace Custom block called for each matched element if flash is installed (optional).
     * @param Function update Custom block called for each matched if flash isn't installed (optional).
     * @type jQuery
     *
     * @cat plugins/flash
     * 
     * @example $('#hello').flash({ src: 'hello.swf' });
     * @desc Embed a Flash movie.
     *
     * @example $('#hello').flash({ src: 'hello.swf' }, { version: 8 });
     * @desc Embed a Flash 8 movie.
     *
     * @example $('#hello').flash({ src: 'hello.swf' }, { expressInstall: true });
     * @desc Embed a Flash movie using Express Install if flash isn't installed.
     *
     * @example $('#hello').flash({ src: 'hello.swf' }, { update: false });
     * @desc Embed a Flash movie, don't show an update message if Flash isn't installed.
     *
    **/
    $$ = jQuery.fn.flash = function (htmlOptions, pluginOptions, replace, update) {

        // Set the default block.
        var block = replace || $$.replace;

        // Merge the default and passed plugin options.
        pluginOptions = $$.copy($$.pluginOptions, pluginOptions);

        // Detect Flash.
        if (!$$.hasFlash(pluginOptions.version)) {
            // Use Express Install (if specified and Flash plugin 6,0,65 or higher is installed).
            if (pluginOptions.expressInstall && $$.hasFlash(6, 0, 65)) {
                // Add the necessary flashvars (merged later).
                var expressInstallOptions = {
                    flashvars: {
                        MMredirectURL: location,
                        MMplayerType: 'PlugIn',
                        MMdoctitle: jQuery('title').text()
                    }
                };
                // Ask the user to update (if specified).
            } else if (pluginOptions.update) {
                // Change the block to insert the update message instead of the flash movie.
                block = update || $$.update;
                // Fail
            } else {
                // The required version of flash isn't installed.
                // Express Install is turned off, or flash 6,0,65 isn't installed.
                // Update is turned off.
                // Return without doing anything.
                return this;
            }
        }

        // Merge the default, express install and passed html options.
        htmlOptions = $$.copy($$.htmlOptions, expressInstallOptions, htmlOptions);

        // Invoke $block (with a copy of the merged html options) for each element.
        return this.each(function () {
            block.call(this, $$.copy(htmlOptions));
        });

    };
    /**
     *
     * @name flash.copy
     * @desc Copy an arbitrary number of objects into a new object.
     * @type Object
     * 
     * @example $$.copy({ foo: 1 }, { bar: 2 });
     * @result { foo: 1, bar: 2 };
     *
    **/
    $$.copy = function () {
        var options = {}, flashvars = {};
        for (var i = 0; i < arguments.length; i++) {
            var arg = arguments[i];
            if (arg == undefined) continue;
            jQuery.extend(options, arg);
            // don't clobber one flash vars object with another
            // merge them instead
            if (arg.flashvars == undefined) continue;
            jQuery.extend(flashvars, arg.flashvars);
        }
        options.flashvars = flashvars;
        return options;
    };
    /*
     * @name flash.hasFlash
     * @desc Check if a specific version of the Flash plugin is installed
     * @type Boolean
     *
    **/
    $$.hasFlash = function () {
        // look for a flag in the query string to bypass flash detection
        if (/hasFlash\=true/.test(location)) return true;
        if (/hasFlash\=false/.test(location)) return false;
        var pv = $$.hasFlash.playerVersion().match(/\d+/g);
        var rv = String([arguments[0], arguments[1], arguments[2]]).match(/\d+/g) || String($$.pluginOptions.version).match(/\d+/g);
        for (var i = 0; i < 3; i++) {
            pv[i] = parseInt(pv[i] || 0);
            rv[i] = parseInt(rv[i] || 0);
            // player is less than required
            if (pv[i] < rv[i]) return false;
            // player is greater than required
            if (pv[i] > rv[i]) return true;
        }
        // major version, minor version and revision match exactly
        return true;
    };
    /**
     *
     * @name flash.hasFlash.playerVersion
     * @desc Get the version of the installed Flash plugin.
     * @type String
     *
    **/
    $$.hasFlash.playerVersion = function () {
        // ie
        try {
            try {
                // avoid fp6 minor version lookup issues
                // see: http://blog.deconcept.com/2006/01/11/getvariable-setvariable-crash-internet-explorer-flash-6/
                var axo = new ActiveXObject('ShockwaveFlash.ShockwaveFlash.6');
                try { axo.AllowScriptAccess = 'always'; }
                catch (e) { return '6,0,0'; }
            } catch (e) { }
            return new ActiveXObject('ShockwaveFlash.ShockwaveFlash').GetVariable('$version').replace(/\D+/g, ',').match(/^,?(.+),?$/)[1];
            // other browsers
        } catch (e) {
            try {
                if (navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin) {
                    return (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]).description.replace(/\D+/g, ",").match(/^,?(.+),?$/)[1];
                }
            } catch (e) { }
        }
        return '0,0,0';
    };
    /**
     *
     * @name flash.htmlOptions
     * @desc The default set of options for the object or embed tag.
     *
    **/
    $$.htmlOptions = {
        height: 240,
        flashvars: {},
        pluginspage: 'http://www.adobe.com/go/getflashplayer',
        src: '#',
        type: 'application/x-shockwave-flash',
        width: 320
    };
    /**
     *
     * @name flash.pluginOptions
     * @desc The default set of options for checking/updating the flash Plugin.
     *
    **/
    $$.pluginOptions = {
        expressInstall: false,
        update: true,
        version: '6.0.65'
    };
    /**
     *
     * @name flash.replace
     * @desc The default method for replacing an element with a Flash movie.
     *
    **/
    $$.replace = function (htmlOptions) {
        this.innerHTML = '<div class="alt">' + this.innerHTML + '</div>';
        jQuery(this)
            .addClass('flash-replaced')
            .prepend($$.transform(htmlOptions));
    };
    /**
     *
     * @name flash.update
     * @desc The default method for replacing an element with an update message.
     *
    **/
    $$.update = function (htmlOptions) {
        var url = String(location).split('?');
        url.splice(1, 0, '?hasFlash=true&');
        url = url.join('');
        var msg = '<p>This content requires the Flash Player. <a href="http://www.adobe.com/go/getflashplayer">Download Flash Player</a>. Already have Flash Player? <a href="' + url + '">Click here.</a></p>';
        this.innerHTML = '<span class="alt">' + this.innerHTML + '</span>';
        jQuery(this)
            .addClass('flash-update')
            .prepend(msg);
    };
    /**
     *
     * @desc Convert a hash of html options to a string of attributes, using Function.apply(). 
     * @example toAttributeString.apply(htmlOptions)
     * @result foo="bar" foo="bar"
     *
    **/
    function toAttributeString() {
        var s = '';
        for (var key in this)
            if (typeof this[key] != 'function')
                s += key + '="' + this[key] + '" ';
        return s;
    };
    /**
     *
     * @desc Convert a hash of flashvars to a url-encoded string, using Function.apply(). 
     * @example toFlashvarsString.apply(flashvarsObject)
     * @result foo=bar&foo=bar
     *
    **/
    function toFlashvarsString() {
        var s = '';
        for (var key in this)
            if (typeof this[key] != 'function')
                s += key + '=' + encodeURIComponent(this[key]) + '&';
        return s.replace(/&$/, '');
    };
    /**
     *
     * @name flash.transform
     * @desc Transform a set of html options into an embed tag.
     * @type String 
     *
     * @example $$.transform(htmlOptions)
     * @result <embed src="foo.swf" ... />
     *
     * Note: The embed tag is NOT standards-compliant, but it 
     * works in all current browsers. flash.transform can be
     * overwritten with a custom function to generate more 
     * standards-compliant markup.
     *
    **/
    $$.transform = function (htmlOptions) {
        htmlOptions.toString = toAttributeString;
        if (htmlOptions.flashvars) htmlOptions.flashvars.toString = toFlashvarsString;
        return '<embed ' + String(htmlOptions) + '/>';
    };

    /**
     *
     * Flash Player 9 Fix (http://blog.deconcept.com/2006/07/28/swfobject-143-released/)
     *
    **/
    if (window.attachEvent) {
        window.attachEvent("onbeforeunload", function () {
            __flash_unloadHandler = function () { };
            __flash_savedUnloadHandler = function () { };
        });
    }

})();